259 lines
7.0 KiB
C
259 lines
7.0 KiB
C
/* systab.c - Display EFI systab. */
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2008 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <grub/types.h>
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#include <grub/mm.h>
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#include <grub/misc.h>
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#include <grub/normal.h>
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#include <grub/efi/api.h>
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#include <grub/efi/efi.h>
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#define ACPI_20_TABLE_GUID \
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{0x8868e871,0xe4f1,0x11d3,{0xbc,0x22,0x0,0x80,0xc7,0x3c,0x88,0x81}}
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#define ACPI_TABLE_GUID \
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{0xeb9d2d30,0x2d88,0x11d3,{0x9a,0x16,0x0,0x90,0x27,0x3f,0xc1,0x4d}}
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#define SAL_SYSTEM_TABLE_GUID \
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{0xeb9d2d32,0x2d88,0x11d3,{0x9a,0x16,0x0,0x90,0x27,0x3f,0xc1,0x4d}}
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#define SMBIOS_TABLE_GUID \
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{0xeb9d2d31,0x2d88,0x11d3,{0x9a,0x16,0x0,0x90,0x27,0x3f,0xc1,0x4d}}
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#define MPS_TABLE_GUID \
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{0xeb9d2d2f,0x2d88,0x11d3,{0x9a,0x16,0x0,0x90,0x27,0x3f,0xc1,0x4d}}
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#define HCDP_TABLE_GUID \
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{0xf951938d,0x620b,0x42ef,{0x82,0x79,0xa8,0x4b,0x79,0x61,0x78,0x98}}
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struct guid_mapping
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{
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grub_efi_guid_t guid;
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const char *name;
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void (*disp)(struct guid_mapping *map, void *table);
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};
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static void disp_sal (struct guid_mapping *map, void *table);
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static void disp_acpi (struct guid_mapping *map, void *table);
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static const struct guid_mapping guid_mappings[] =
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{
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{ ACPI_20_TABLE_GUID, "ACPI-2.0", disp_acpi},
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{ ACPI_TABLE_GUID, "ACPI-1.0", disp_acpi},
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{ SAL_SYSTEM_TABLE_GUID, "SAL", disp_sal},
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{ SMBIOS_TABLE_GUID, "SMBIOS",NULL},
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{ MPS_TABLE_GUID, "MPS", NULL},
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{ HCDP_TABLE_GUID, "HCDP", NULL}
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};
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struct sal_system_table
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{
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grub_uint32_t signature;
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grub_uint32_t total_table_len;
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grub_uint16_t sal_rev;
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grub_uint16_t entry_count;
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grub_uint8_t checksum;
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grub_uint8_t reserved1[7];
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grub_uint16_t sal_a_version;
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grub_uint16_t sal_b_version;
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grub_uint8_t oem_id[32];
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grub_uint8_t product_id[32];
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grub_uint8_t reserved2[8];
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};
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static void
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disp_sal (struct guid_mapping *map, void *table)
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{
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struct sal_system_table *t = table;
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grub_uint8_t *desc = table;
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grub_uint32_t len, l;
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grub_printf ("SAL rev: %02x, signature: %x, len:%x\n",
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t->sal_rev, t->signature, t->total_table_len);
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grub_printf ("nbr entry: %d, chksum: %02x, SAL version A: %02x B: %02x\n",
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t->entry_count, t->checksum,
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t->sal_a_version, t->sal_b_version);
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grub_printf ("OEM-ID: %-32s\n", t->oem_id);
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grub_printf ("Product-ID: %-32s\n", t->product_id);
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desc += sizeof (struct sal_system_table);
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len = t->total_table_len - sizeof (struct sal_system_table);
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while (len > 0)
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{
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switch (*desc)
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{
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case 0:
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l = 48;
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grub_printf (" Entry point: PAL=%016lx SAL=%016lx GP=%016lx\n",
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*(grub_uint64_t*)(desc + 8),
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*(grub_uint64_t*)(desc + 16),
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*(grub_uint64_t*)(desc + 24));
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break;
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case 1:
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l = 32;
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grub_printf (" Memory descriptor entry addr=%016llx len=%uKB\n",
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*(grub_uint64_t*)(desc + 8),
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*(grub_uint32_t*)(desc + 16) * 4);
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grub_printf (" sal_used=%d attr=%x AR=%x attr_mask=%x "
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"type=%x usage=%x\n",
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desc[1], desc[2], desc[3], desc[4], desc[5], desc[6]);
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break;
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case 2:
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l = 16;
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grub_printf (" Platform features: %02x", desc[1]);
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if (desc[1] & 0x01)
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grub_printf (" BusLock");
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if (desc[1] & 0x02)
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grub_printf (" IrqRedirect");
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if (desc[1] & 0x04)
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grub_printf (" IPIRedirect");
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grub_printf ("\n");
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break;
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case 3:
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l = 32;
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grub_printf (" TR type=%d num=%d va=%016llx pte=%016llx\n",
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desc[1], desc[2],
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*(grub_uint64_t *)(desc + 8),
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*(grub_uint64_t *)(desc + 16));
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break;
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case 4:
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l = 16;
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grub_printf (" PTC coherence nbr=%d addr=%016llx\n",
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desc[1], *(grub_uint64_t *)(desc + 8));
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break;
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case 5:
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l = 16;
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grub_printf (" AP wake-up: mec=%d vect=%x\n",
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desc[1], *(grub_uint64_t *)(desc + 8));
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break;
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default:
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grub_printf (" unknown entry %d\n", *desc);
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return;
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}
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desc += l;
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len -= l;
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}
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}
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static void
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disp_acpi (struct guid_mapping *map, void *table)
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{
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disp_acpi_rsdp_table (table);
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}
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static void
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disp_systab (void)
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{
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grub_efi_char16_t *vendor;
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const grub_efi_system_table_t *st = grub_efi_system_table;
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grub_efi_configuration_table_t *t;
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unsigned int i;
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grub_printf ("Signature: %016llx revision: %08x\n",
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st->hdr.signature, st->hdr.revision);
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grub_printf ("Vendor: ");
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for (vendor = st->firmware_vendor; *vendor; vendor++)
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grub_printf ("%c", *vendor);
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grub_printf (", Version=%x\n", st->firmware_revision);
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grub_printf ("%ld tables:\n", st->num_table_entries);
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t = st->configuration_table;
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for (i = 0; i < st->num_table_entries; i++)
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{
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unsigned int j;
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grub_printf ("%016llx ", (grub_uint64_t)t->vendor_table);
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grub_printf ("%08x-%04x-%04x-",
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t->vendor_guid.data1, t->vendor_guid.data2,
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t->vendor_guid.data3);
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for (j = 0; j < 8; j++)
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grub_printf ("%02x", t->vendor_guid.data4[j]);
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for (j = 0; j < sizeof (guid_mappings)/sizeof(guid_mappings[0]); j++)
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if (grub_memcmp (&guid_mappings[j].guid, &t->vendor_guid,
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sizeof (grub_efi_guid_t)) == 0)
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grub_printf (" %s", guid_mappings[j].name);
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grub_printf ("\n");
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t++;
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}
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}
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static void
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disp_systab_entry (const char *name)
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{
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const grub_efi_system_table_t *st = grub_efi_system_table;
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grub_efi_configuration_table_t *t;
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unsigned int i;
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struct guid_mapping *map;
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map = NULL;
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for (i = 0; i < sizeof (guid_mappings)/sizeof(guid_mappings[0]); i++)
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if (grub_strcmp (guid_mappings[i].name, name) == 0)
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{
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map = &guid_mappings[i];
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break;
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}
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if (map == NULL)
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{
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grub_printf ("System table '%s' unknown\n", name);
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return;
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}
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if (map->disp == NULL)
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{
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grub_printf ("Don't know how to display table '%s'\n", name);
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return;
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}
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t = st->configuration_table;
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for (i = 0; i < st->num_table_entries; i++)
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{
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if (grub_memcmp (&map->guid, &t->vendor_guid,
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sizeof (grub_efi_guid_t)) == 0)
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{
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grub_set_more (1);
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(*map->disp)(map, t->vendor_table);
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grub_set_more (0);
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return;
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}
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t++;
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}
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grub_printf ("Systab '%s' not found\n", map->name);
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}
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static grub_err_t
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grub_cmd_systab (struct grub_arg_list *state, int argc, char **args)
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{
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int i;
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if (argc == 0)
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disp_systab ();
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else
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for (i = 0; i < argc; i++)
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disp_systab_entry (args[i]);
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return 0;
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}
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GRUB_MOD_INIT(systab)
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{
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(void)mod; /* To stop warning. */
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grub_register_command ("systab", grub_cmd_systab, GRUB_COMMAND_FLAG_BOTH,
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"systab [NAME]",
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"Display EFI system table.", NULL);
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}
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GRUB_MOD_FINI(systab)
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{
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grub_unregister_command ("systab");
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}
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